I recently sold an item on ebay but the customer is saying that I sent the wrong item..but I definitely sent the correct item.

What shall I do? I still have the money in my paypal should i request for the customer to send the item back and I give him the money back?
Or is it best for me to transfer the money to a safer place and report the customer? if so..where?

Note that adblockers might block our captcha, and other functionality on BHW so if you don't see the captcha or see reduced functionality please disable adblockers to ensure full functionality, note we only allow relevant management verified ads on BHW.